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1601
resultados
Última actualización
20/03/2026 [07:15:00]
Resultados 1350 a 1375 de 1601
Resumen de: WO2026049012A1
The present invention provides a positive electrode active material for a lithium ion secondary battery, the positive electrode active material having resistance against high voltage, being sufficient for practical use in a lithium ion secondary battery, and having a high battery capacity. The positive electrode active material for a lithium ion secondary battery has particles of a lithium-nickel-manganese composite oxide and a coating layer for coating at least a part of the surfaces of the particles of the lithium-nickel-manganese composite oxide. As elements other than oxygen, the lithium-nickel-manganese composite oxide contains Li, Ni, Mn, and optionally an element M. The ratio of the amounts of substance of these elements is expressed as Li:Ni:Mn:M = t:1-x-y:x:y (where 0.47 ≤ t ≤ 0.6, 0.7 ≤ x ≤ 0.8, and 0 ≤ y ≤ 0.15). The coating layer contains a compound containing Li, P, and an element X (where X is at least one element selected from the group consisting of elements forming a hexavalent cation).
Resumen de: WO2026048963A1
Provided is a method for producing a sulfide. The sulfide contains Li, P, S, and M as main constituent elements, M being at least one selected from Ge and Sn. The method for producing a sulfide, which is a liquid-phase synthesis method with which it is possible to reduce the amount of organic solvent used, comprises: a first step for obtaining a first solution by adding an Li source, an S source, and an M source to an aqueous solvent in which the amount of an organic solvent is 50 wt% or less; a second step for obtaining a second solution by adding P2S5 as a P source to the first solution; and a third step for removing the aqueous solvent in the second solution and performing crystallization by heat treatment.
Resumen de: WO2026048902A1
A negative electrode 10 according to the present disclosure comprises: a substrate 12; a negative electrode active material layer 14 that is supported by the substrate 12; and a coating film 16 that contains an inorganic material and is provided on the surface of the negative electrode active material layer 14. The coating film 16 has an average thickness of, e.g., 150 nm or greater. The coating film 16 has an average pore diameter of, e.g., 100 nm or less. The coating film 16 contains, e.g., Li, P, F, and O.
Resumen de: WO2026048626A1
Provided is an all-solid-state secondary battery in which a current collector layer and an electrode layer can be reliably brought into contact with each other, and stable battery characteristics can be obtained. An all-solid-state battery 1 comprises: a power storage element 2 having a solid electrolyte layer 3, a positive electrode layer 4, and a negative electrode layer 5; a first current collector layer 6 provided on a main surface 2a on one side of the power storage element 2; a second current collector layer 7 provided on a main surface 2b on the other side of the power storage element 2; and a sealing layer 8 that is provided between the first current collector layer 6 and the second current collector layer 7 and seals the power storage element 2. An internal space 1a surrounded by the first current collector layer 6, second current collector layer 7, and sealing layer 8 is formed. Where the atmospheric pressure of the internal space 1a at 25°C is denoted by P1 and the atmospheric pressure of an external space at 25°C is denoted by P2, the difference between P2 and P1 (P2 - P1) is 10-100 kPa.
Resumen de: WO2026049513A1
The present invention relates to positive electrode active material for an all-solid-state battery and a method for producing same. More specifically, due to a coating layer, containing boron and lithium, formed on the positive electrode active material, side reactions between the positive electrode active material and solid electrolyte can be prevented and improve the output and lifespan of the all-solid-state battery.
Resumen de: WO2026049508A1
The present invention relates to a polymer composition, a polymer slurry, a battery separator and a battery, and may comprise a polymer component comprising: a first polymerization unit derived from an N-unsubstituted (meth) acrylamide group-containing monomer; a second polymerization unit derived from an N-2 substituted (meth) acrylamide group-containing monomer; a third polymerization unit derived from a lactam group-containing monomer having 6 or more ring atoms; and a fourth polymerization unit derived from a photoreactive functional group-containing monomer.
Resumen de: WO2026049507A1
The present invention relates to a polymer composition, a polymer slurry, a separator for a battery, and a battery, wherein the polymer composition may comprise a polymer component comprising: a first polymerization unit derived from an N-unsubstituted (meth)acrylamide group-containing monomer; a second polymerization unit derived from an N-2 substituted (meth)acrylamide group-containing monomer; and a third polymerization unit derived from a lactam group-containing monomer having 6 or more ring atoms.
Resumen de: WO2026049506A1
The present invention relates to a polymer composition, a polymer slurry, a separator for a battery, and a battery. The polymer composition contains a polymer component comprising: a first polymerization unit derived from an N-unsubstituted (meth)acrylamide group-containing monomer; a second polymerization unit derived from an N-monosubstituted (meth)acrylamide group-containing monomer; and a third polymerization unit derived from an N-disubstituted (meth)acrylamide group-containing monomer, wherein the content of the first polymerization unit in the polymer component can be adjusted.
Resumen de: WO2026049420A1
Provided is a device for performing an evaluation test on a battery cell including an electrode assembly and a battery case in which the electrode assembly is mounted, according to one embodiment of the present invention. The device comprises a sensor unit facing at least one end of the battery cell, wherein the sensor unit is spaced apart from the one end of the battery cell by a limit height corresponding to a state before a venting phenomenon occurs in the battery cell, and detects whether the one end of the battery cell has swollen to the limit height, and the limit height is a height at which the one end of the battery cell swells immediately before venting due to gas generated inside the battery cell.
Resumen de: WO2026048654A1
A lithium secondary battery comprises: an electrode group in which a band-shaped positive electrode and a band-shaped negative electrode are wound with a separator interposed therebetween; and a non-aqueous electrolyte. The positive electrode has a positive electrode current collector and a positive electrode mixture layer that is disposed on the positive electrode current collector. The positive electrode has one or more positive electrode current collector exposed portions at which the positive electrode current collector is exposed, and the one or more positive electrode current collector exposed portions include one or more positive electrode lead fixing portions to which a positive electrode lead is fixed. The negative electrode includes one or more negative electrode lead fixing portions to which a negative electrode lead is fixed. The negative electrode lead fixing portion faces one of the one or more positive electrode current collector exposed portions in a radial direction that is perpendicular to the winding axis, with the separator interposed therebetween.
Resumen de: WO2026048436A1
A battery (10) comprises: a bottomed cylindrical outer can (16) that has an opening and accommodates an electrode body; a sealing body (17) that covers the opening of the outer can (16); a gasket (28) that is disposed between the outer can (16) and the sealing body (17); and a resistance layer (30) that is disposed between an end tip (16a) on the opening side of the outer can (16) and the upper surface of the sealing body (17) facing the end tip (16a), and that has a penetration resistance value of 0.05 Ω or more and 10 kΩ or less.
Resumen de: WO2026048424A1
Provided is a sheet-like object for a current collector capable of achieving both light weight and good battery characteristics at low cost. This sheet-like object for a current collector includes a base material layer, and layers containing organic resin A on both surfaces of the base material layer. The organic resin A is composed only of a polymer having LUMO of -0.5 eV or more.
Resumen de: WO2026048475A1
A nonaqueous electrolyte secondary battery (10) includes a positive electrode (11), a negative electrode (12), and a nonaqueous electrolyte, and is characterized in that: the positive electrode (11) has a positive electrode core and a positive electrode mixture layer provided on the positive electrode core; the positive electrode mixture layer contains a positive electrode active material; the positive electrode active material includes a first positive electrode active material having 《MK1》the shape of a secondary particle《/MK1》 formed by aggregation of primary particles, and a second positive electrode active material having 《MK1》the shape of a single particle《/MK1》; the content of the second positive electrode active material is 10 mass% or more and less than 40 mass% with respect to the total mass of the positive electrode active material; the nonaqueous electrolyte contains a heterocyclic compound including at least one electron withdrawing group R and a heterocycle; the electron withdrawing group R contains oxygen and/or nitrogen; and 《RA》the heterocycle《/RA》 contains nitrogen and sulfur.
Resumen de: WO2026045077A1
The present application provides a lithium-ion battery, a positive electrode sheet, and an electrical device. The positive electrode sheet comprises a positive electrode active layer. Components of the positive electrode active layer comprise a positive electrode active material and an additive. The positive electrode active material comprises lithium iron phosphate. The additive comprises hydrogenated nitrile butadiene rubber. The degree of hydrogenation of the hydrogenated nitrile butadiene rubber is 30% to 85%. The degree of hydrogenation is defined as follows: the molar content of double bonds in nitrile butadiene rubber is P1, the molar content of double bonds in the hydrogenated nitrile butadiene rubber obtained after corresponding hydrogenation is P2, and the degree of hydrogenation is (P1-P2)/P1. The film resistance of the lithium-ion battery is low.
Resumen de: WO2026044973A1
Provided are an end plate, a battery module and a battery pack. The battery module comprises an end plate and a busbar fixing base; the top portion of the end plate is provided with a guide slot for accommodating the busbar fixing base; the bottom portion of the busbar fixing base is provided with a snap fastener, and the bottom wall of the guide slot is provided with a snap-fit portion; the snap fastener is fixed in the snap-fit portion along a first direction, and the busbar fixing base abuts, along a second direction, against at least two side walls of the guide slot.
Resumen de: WO2026044971A1
A battery pack structure. The battery pack structure comprises: a housing, wherein the housing has a first cavity configured for mounting a battery module, and a second cavity provided on one side of the first cavity in a first direction; and a BMS and a BDU, wherein the BDU is provided in the second cavity, and the BMS is provided on the outer side of the second cavity and is connected to a bottom plate of the housing. In the battery pack structure, the BMS is provided on the outer bottom surface of the housing, so that when the BMS requires maintenance, the battery pack structure does not need to be disassembled, and the BMS on the outside of the housing can be directly maintained, thereby simplifying the overall maintenance operation, saving time and labor, and improving the maintenance efficiency.
Resumen de: WO2026046150A1
The present disclosure relates to a thermal management module for a vehicle, and to a vehicle having said thermal management module. The thermal management module comprises: a refrigerant module having a first channel for refrigerant flow and a second channel for coolant flow; and a coolant plate that is in fluid communication with the second channel. In the thickness direction of the coolant plate, the refrigerant module at least partially coincides with the coolant plate, and the first channel at least partially coincides with the coolant plate.
Resumen de: WO2026046371A1
Provided in the present application are an electrochemical device and an electronic device. The electrochemical device comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte. The electrolyte is composed of a compound of formula I and a compound of formula II. The compound of formula I is shown below, and the compound of formula II is shown below, wherein n is 0, 1, or 2. Based on the total mass of the electrolyte, the mass percentage of the compound of formula I is a%, wherein 5≤a≤50. In the present application, by means of controlling the components and the amounts of the components of the electrolyte in the electrochemical device, the cycle performance and storage performance of the electrochemical device at a high temperature can be improved, and the low-temperature loading performance of the electrochemical device can also be improved at the same time.
Resumen de: WO2026048732A1
A non-aqueous electrolyte secondary battery includes: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) therebetween; and an outer can that accommodates the electrode body (14). The negative electrode (12) has: a negative electrode core body (30); and a mixture layer (32) that is provided to at least one surface of the negative electrode core body (30) and that contains an active material. The negative electrode (12) has a core body exposed part (31) having no mixture layer on either surface of the negative electrode core body (30) at a negative electrode winding initiation-side end part (12a) that is located on the inner circumferential side with respect to a positive electrode winding-initiation end (B1) of the positive electrode (11) and that is closer to the winding initiation-side as compared with the positive electrode winding-initiation end (B1). The core body exposed part (31) has disposed, on at least a portion thereof in the winding direction, a non-tape-covered part (40) that is not covered with a tape on either side thereof in the thickness direction.
Resumen de: WO2026048628A1
Provided is an all-solid-state secondary battery in which a short circuit hardly occurs between a positive electrode side collector and a negative electrode side collector. An all-solid-state secondary battery 1 comprises: an electricity storage element 2 having a solid-state electrolyte layer 3, a positive electrode layer 4, and a negative electrode layer 5; a first collector layer 6 provided on a primary surface 2a on one side of the electricity storage element 2; a second collector layer 7 provided on a primary surface 2b on the other side of the electricity storage element 2; and a sealing layer 8 provided between the first collector layer 6 and the second collector layer 7 and sealing the electricity storage element 2. The sealing layer 8 has a first sealing layer portion 9, a second sealing layer portion 10, and an insulating layer portion 11 having a volume resistance higher than those of the first sealing layer portion 9 and the second sealing layer portion 10. The insulating layer portion 11 is provided between the first sealing layer portion 9 and the second sealing layer portion 10 in the thickness direction of the sealing layer 8.
Resumen de: WO2026048629A1
A lead-acid battery 1 according to the present disclosure comprises a positive electrode plate 2P. The positive electrode plate 2P comprises a positive electrode material 33P. The positive electrode material 33P contains short fibers 40 formed from a polymer. The short fibers 40 have a monomer molecular weight M of 42 or more, and the degree of polymerization Gn calculated from the number average molecular weight (Mn) by the formula indicated below is 1040 or less. The content of the short fibers 40 in the positive electrode material 33P is more than 0.01 mass%. Formula: Gn = Mn/M (Gn denotes the degree of polymerization, Mn denotes the number average molecular weight, and M denotes the monomer molecular weight).
Resumen de: WO2026048627A1
The present invention provides an all-solid-state secondary battery in which a short circuit is less likely to occur between a positive electrode-side current collector member and a negative electrode-side current collector member. An all-solid-state secondary battery 1 includes: a power storage element 2 having a solid electrolyte layer 3, a positive electrode layer 4, and a negative electrode layer 5; a first current collector layer 6 provided on one main surface of the power storage element 2; a second current collector layer 7 provided on the other main surface of the power storage element 2; and a sealing layer 8 provided between the first current collector layer 6 and the second current collector layer 7 and sealing the power storage element 2. In a plan view, an outer peripheral edge 8a of the sealing layer 8 is located outside an outer peripheral edge 6a of the first current collector layer 6.
Resumen de: WO2026049539A1
An electrode notching apparatus for manufacturing a secondary battery, according to one embodiment of the present invention, comprises: a lower die on which an electrode sheet is placed to support the electrode sheet; and a notching unit for notching the electrode sheet and processing the same into a form including an electrode tab, wherein the lower die includes a plurality of suction holes for holding the electrode sheet such that the electrode sheet placed on the upper surface of the lower die is spread flat, and the plurality of suction holes are arranged to hold both edges in the horizontal direction and/or the vertical direction of the electrode sheet placed on the upper surface of the lower die.
Resumen de: WO2026049537A1
A lithium manganese iron phosphate (LMFP) cathode active material for a lithium secondary battery and a manufacturing method therefor are disclosed. The cathode active material according to the present invention comprises LMFP represented by LiMnaFebPO4 (a + b = 1, a > 0, b > 0), and satisfies relational expression 1. Relational expression 1 0.40 ≤ CS(101)/D50(WM) ≤ 0.48 In relational expression 1, CS(101) is a crystal size (nm) of a (101) plane measured by an X-ray diffraction analyzer, and D50(WM) is the average particle size (D50, nm) of an LMFP slurry as measured by a Malvern particle size analyzer.
Nº publicación: WO2026049534A1 05/03/2026
Solicitante:
LG CHEM LTD [KR]
\uC8FC\uC2DD\uD68C\uC0AC \uC5D8\uC9C0\uD654\uD559
Resumen de: WO2026049534A1
The present invention relates to a positive electrode active material, and a positive electrode and a lithium secondary battery comprising same, wherein the positive electrode active material comprises a lithium iron manganese phosphate-based compound, a value calculated by Equation 1 below is 60 or less, and a value calculated by Equation 2 below is 13-22. Equation 1 |LB-6|*103 Equation 2 |LD-3|*103 In Equations 1 and 2, LB is the b-axis length (unit: Å) of the crystal structure of the lithium iron manganese phosphate-based compound, and LD is the (020) interplanar spacing (d-spacing, unit: Å) of the crystal structure of the lithium iron manganese phosphate-based compound.
BOPI
Sede Electrónica
